Oleg Nesterov 6a716c90a5 hung_task debugging: Add tracepoint to report the hang ...

Currently check_hung_task() prints a warning if it detects the
problem, but it is not convenient to watch the system logs if
user-space wants to be notified about the hang.

Add the new trace_sched_process_hang() into check_hung_task(),
this way a user-space monitor can easily wait for the hang and
potentially resolve a problem.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Dave Sullivan <dsulliva@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20131019161828.GA7439@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2013-10-31 11:16:18 +01:00

..

events

hung_task debugging: Add tracepoint to report the hang

2013-10-31 11:16:18 +01:00

define_trace.h

tracing: Add DEFINE_EVENT_FN() macro

2013-06-20 22:24:32 -07:00

ftrace.h

tracing/perf: Avoid perf_trace_buf_*() in perf_trace_##call() when possible

2013-08-13 21:06:30 -04:00

syscall.h

tracing: Add missing syscall_metadata comment

2013-07-01 20:34:25 -04:00